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ad-work [718]
3 years ago
11

In B E C, F is the centroid, and AC = 12. Find A F and F C

Mathematics
1 answer:
klemol [59]3 years ago
4 0

bearing in mind that the centroid in a triangle cuts each of the three medians in a 2:1 ratio.

since we know that A C = 12, let's split it in a 2:1 ratio then, cleary from the picture the larger is F C, so F C : A F is on a 2:1 ratio.

\bf A C=A F+F C\qquad \qquad \cfrac{F C}{A F}=\cfrac{2}{1}\qquad \qquad \cfrac{2\cdot \frac{12}{2+1}}{1\cdot \frac{12}{2+1}}\implies \cfrac{2\cdot 4}{1\cdot 4}\implies \cfrac{8}{4}

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3 years ago
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4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%7B60%7D%20%2F%5Csqrt%7B5%7D%20%28in%20radical%20form%29" id="TexFormula1" title="\sqrt
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2\sqrt{3}

------------------------

Steps:

1st write out equation

\frac{\sqrt{60}}{\sqrt{5}} \\

Second write the conjugant and multiply it.

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After multiplying you should get,

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